Seal-lock



I (No Model.)

SEAL LOOK.

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PATENT Enron.

THOMAS FURLONG, OF ST. LOUIS, MISSOURI.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 558,941, dated April 28, 1896. Application filed September 8, 1895. Serial No. 661,231. (No model.)

being had to the accompanying drawings,

forming a part of this specification, in which Figure 1 is a side elevational view of my improved lock with the sliding seal-plate removed. Fig. 2 is an edge elevational View, the sliding seal-plate being absent. Fig. 3 is a bottom plan view. Fig. 4 is a cross-sectional view on line 4 4, Fig. 1. I Fig. 5 is adetail view of the locking pin or bolt. Fig. 6 is a View of the sealing-card. Fig. 7 is a detail View of the sliding seal-plate, showing the exterior thereof Fig. 8 is an edge view of said seal-plate. Fig. 9 is an inverted view of the seal-plate, looking at its inner face. Fig. 10 is a detail of the tumbler. Fig. 11 is a detail of the bolt forreceiving the hasp.

This invention relates to a new and useful improvement in locks, and is designed espe cially as an improvement, in looks for cardoors or other doors of like character.

The objects of the invention are to construct alock of the character described,which, when locked, is sealed, said seal being contained within the lock-casing, and which look cannot be unlocked without destruction of some of its parts. This dispenses with the wire. and lead seal which is in common use on car-doors.

Another object of the invention is to provide the lock with means whereby, when the same is opened, an audible signal is sounded, giving notice of such act.

With these objects in view the invention consists of a lock inwhich there is present a locking pin or bolt for the hasp, which pin is inserted through the lock-casing, said lock also having present a tumbler which cooperates with a sliding seal-plate, looking it in position, said seal-plate in turn locking the bolt in position.

Another feature of the invention resides in the provision of means for sealing the tumalso containing certain information or data relating to the car on which the look is applied.

Another feature of the invention resides in. grooving or channeling the sliding seal-plate, whereby, when a blow is delivered upon the same, it is easily fractured or broken and in arranging in juxtaposition to the sliding sealplate a detonating-cap, which is exploded upon the fracture of said seal-plate.

'Other features of invention reside in the construction, arrangement, and combination of the several parts, all as will hereinafter be described, and afterward pointed out in the claims.'

In the drawings, A indicates a suitable casing, which is provided with lugs or ears, by means of which the same is secured to the side' of a car or other suitable support. This casing and its lugs are preferably countersunk in the side of the car to the depth of the lugs, and the openings through the lugs to receive the bolts are preferably square, so as to prevent the bolts from being turned from the outside of the car, the nuts on the bolts being on the inside of the car.

B indicates a locking pin or bolt, the ends of which are preferably reduced and perforated. To the upper end I prefer to attach a chain 0, the other end of which is secured to the side of the car, said chain preventing misplacement of the bolt. This bolt is formed with a shoulder (2 near its upper end, which is adapted to rest upon the upper side of the lock-casing when the bolt is inserted and de termine the position of a reduced annulus b on the bolt with relation to other parts of the look, as will hereinafter be described.

D indicates the hasp, which is preferably secured to the door by a suitable staple, as usual, which hasp is adapted to be passed over the perforated head of a bolt E, through which perforated head the-lockingbolt B is also designed to pass. Bolt E, besides affording reception for the hasp and lockingbolt, also secures the lower end of the lockcasing to the car.

Mounted in the lock-casing, preferably in the back thereof, is a tumbler F, which is preferably slotted to receive a projection a, which guides the tumbler in its movement.

Projecting from the end of this tumbler up through a suitable opening in the partitionwall of the lock-casing is a dog G, the lower face of which is preferably inclined, as shown.

Arranged on the upper face of the partition-wall and on each side of the opening through which dog G operates is a ridge II, whose function is to support the sealing-card in the upper part of the casing. This ridge, however, is not important and may be dispensed with, if desired.

I indicates the sliding seal-plate, which is received in grooves a in the casing, said sealplate being preferably introduced from the side. On the lower edge of this seal-plate and projecting inwardly is a cam-faced projection I, which is adapted upon the insertion of the seal-plate to raise the dog G, after which the dog falls by gravity or by a spring, if desired, behind said projection and locks the seal-plate in position. In inserting the plate, assuming that bolt B is in position, the projection 1 passes through the reduced portion 1) of said bolt, and after the dog G has looked the sealplate in position a projection I on the plate is in line with the bolt and is seated in the recess 1). In this manner it will be seen that the seal-plate is prevented from being with drawn by the (log G, and withdrawal of bolt 13 is prevented by the projection I on the seal-plate. These projections are shown in line with each other, representing, practically, a broken or interrupted flange, the dog G occupying, when the seal-plate is in position, the break in the flange. It is obvious, however, that this alinement of the projection is not absolutely necessary, as the projection I could as well be arranged at the upper edge of the seal-plate or in the middle of the sealplate or in any position on the seal-plate, the only change required in the other parts of the lock being the change of location of the recessed portion Z) of the bolt.

' Projecting out from the partition which divides the lock-casing is a stud or pin J, which is adapted to be inserted through an opening in a card-seal K. This card-seal preferably contains certain information or data concerning the car, its contents,date of shipment, &c. of the car to which the lock is attached, such written or printed matter being toward the lock for purposes hereinafter described. WVhen the seal-plate I is about to be inserted in the lock, the card K is placed in position on the pin J. As the dog G is raised by the projection 1 upon the insertion of the seal-plate, it slightly bends the lower edge of the card, which tends to force the dog G in its lowered position. When seal-plate I is in place, the card K prevents the dog from rising again to permit the withdrawal of the seal-plate, and in this manner the card acts as a seal for the lock and the lock cannot be opened without breaking the seal-plate I. This card-seal is preferably provided with an opening to receive the pin J, as shown in Fig. 6, and when a car is ready for transportation these cards are preferably made out in duplicate, one be ing placed in the lock and the other retained at the place of shipment. Vhen the car reaches its destination and the seal-plate I is broken to open the car, the card-seal is removed and retained as a reference, the perforation in the card readily permitting it to be filed, so that a number of cards may be kept in a chronological order.

To make the fracture of the seal-plate I easy, I preferably groove or channel the inner face thereof, as shown in Fig. 9, and to call attention to the mostdesirable point to strike said seal-plate I form a knob or projection on its outer face about the center of the sealplate, as shown in Fig. '7.

It is desirable upon the opening of cars that there be some audible signal or alarm sounded to notify'the proper officials of what is being done. To accomplish this, I arrange upon the pin J a detonating-alarmin the form of a cap L, as shown in Fig. 4. This cap, when a blow is struck upon the seal-plate I, is exploded and not only sounds the alarm, but assists in eifecting the fracture of said seal-plate.

I am aware that many minor changes in the construction, arrangement, and combination of the several partsof my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a lock, the combination with a bolt, of a seal-plate adapted to be inserted in the lock-casing, after the bolt is in position, to engage and lock said bolt in position, and a tumbler which engages and locks the sealplate in position; substantially as described.

2. In a lock, the combination with a bolt, of a seal-plate which is adapted to be inserted in the lock-casing after the bolt is in position, to lock the bolt in place, means within the lock-casing for locking said seal-plate in position and a card-seal to prevent said means permitting the withdrawal of the plate, substantially as described.

3. In a lock, the combination with a suitable casing, of a bolt provided with a reduced portion, which bolt is adapted to be inserted in the casing, a tumbler, and a seal-plate provided with suitable projections to engage the tumbler and recess in the bolt, substantially as described.

4:. In a lock, the combination with a bolt, having a recessed portion, of a tumbler, having a projection formed with an inclined face, a seal-plate which is adapted to be inserted in the lock-casing, a projection on said sealplate, having an inclined face to raise the tumbler and with which projection the tumbler engages to prevent the removal of the sealplate, and a projection on the seal-plate for engaging the recess in the bolt, to prevent the removal of said bolt, substantially as described.

5. In a lock, the combination with a bolt,

of a sliding tumbler, a seal-plate which is locked in position by the tumbler, said sealplatelocking the bolt in position and a yielding seal, which permits the tumbler to operate while the seal-plate is being inserted, but

inserted in said lock to prevent the tumbler from becoming disengaged from the sealplate, substantially as described.

7. In a lock, the combination with a suitable casing, of a bolt provided with a reduced portion, a seal-plate which cooperates with the reduced portion of the bolt, projections on said seal-plate, a tumbler which cooperates with said projections, a pin J ,a card-seal, which is arranged upon said pin to prevent accidental displacement of the tumbler, and a detonating-cap arranged upon the pin J which is adapted to be exploded when the seal-plate is fractured or broken; substantially as described.

In testimony whereof I hereunto ,affix my signature, in presence of two witnesses, this 31st day of August, 1895.

- TI-IOS. FURLONG.

Witnesses:

F. R. CORNWALL, HUGH K. WAGNER. 

